#!/bin/sh

for i in *; do
	if [ -d $i ]; then
		echo "renaming content of $i ..."
		cd $i
		for j in *; do
		if [ -f "$j" ]; then
			dst_file="`echo $j | sed 's/\ /\\ /g' | sed 's/(/\\(/g' | sed s'/)/\\)/g' | sed 's/&/\\&/g' | sed 's/!/\\!/g'`"
			trg_file="`echo $j | sed 's/\ /_/g' | sed 's/&/_/g'| sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ()-,!/abcdefghijklmnopqrstuvwxyz_____/'`"
			if [ "$dst_file" != "$trg_file" ]; then
				mv "$dst_file" $trg_file
				chmod 644 $trg_file
			fi
		fi
		# assume albums
		if [ -d "$j" ]; then
			cd $j
			album="`echo $j | sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ()-,/abcdefghijklmnopqrstuvwxyz____/'`"
			for song in *; do
				dst_file="`echo $song | sed 's/\ /\\ /g' | sed 's/(/\\(/g' | sed s'/)/\\)/g' | sed 's/&/\\&/g' | sed 's/!/\\!/g'`"
				trg_file="`echo $song | sed 's/\ /_/g' | sed 's/&/_/g'| sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ()-,!/abcdefghijklmnopqrstuvwxyz_____/'`"
				if [ ! -f ../${album}__${trg_file} ]; then
					mv "$dst_file" ../${album}__${trg_file}
					chmod 644 ../${album}__${trg_file}
				fi
			done
			cd ..
			rm -rf $j
		fi
		
		done
		cd ..
	fi
done